The XL Dock N Lock Power Chair Lift features an innovative loading system that automatically secures your chair into place on the platform. It features an innovative docking bar that doesn’t require the use of straps or retractors. In just seconds, your power chair can be loaded and safely secured. The XL Dock N Lock simply couldn't be easier to install and operate. This durable, reliable, and powerful lift can be adjusted to fit almost any scooter and can be adapted to fit both Class II and III trailer hitches. The spacious platform provides more room for larger scooters. Get on the road and enjoy greater freedom and mobility when you call and order your external chair lift.